Errors: "An unhandled Microsoft .Net Framework exception occurred in toad.exe [14756]." and "Attempted to read or write protected memory. This is often an indication that other memory is corrupt." (4327525)

Toad for Data Analysts (TDA) crashes when doing a right-click Refresh Items in  Object Explorer | Views. Here is the Exception Information.

or

Toad Data Point (TDP) error as soon as trying to connect to database (Access).

ERRORS:

1)

An unhandled Microsoft .Net Framework exception occurred in toad.exe [14756].

2)

System.AccessViolationException was unhandled
 HResult=-2147467261
 Message=Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
 Source=System.Data
 StackTrace:
      at System.Data.OleDb.DataSourceWrapper.InitializeAndCreateSession(OleDbConnectionString constr, SessionWrapper& sessionWrapper)
      at System.Data.OleDb.OleDbConnectionInternal..ctor(OleDbConnectionString constr, OleDbConnection connection)
      at System.Data.OleDb.OleDbConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningObject)
      at System.Data.ProviderBase.DbConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions)
      at System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup, DbConnectionOptions userOptions)
      at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
      at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
      at System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
      at System.Data.ProviderBase.DbConnectionInternal.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
      at System.Data.OleDb.OleDbConnection.Open()
      at Quest.Toad.NativeOdbc.MSAccessAPIWorkaround.GetPrimaryKeys(NativeOdbcConnection connection, String tableName)
      at Quest.Toad.NativeOdbc.OdbcDriverWorkarounds.GetPrimaryKeyWorkaround(NativeOdbcConnection connection, String functionName, String TableName)
      at Quest.Toad.NativeOdbc.NativeOdbcConnection.GetPrimaryKeys(String owner, String TableName)
      at Quest.Toad.Odbc.Scheme.ColumnList.ColumnListTrl.GetPrimaryKeyList()
      at Quest.Toad.Odbc.Scheme.ColumnList.ColumnListTrl.GetTrls()
      at Quest.Toad.Odbc.Scheme.TableList.TableTrl.GetColumnTrls()
      at Quest.Toad.Trl.TrlExtensions.GetColumnTrls(ITrl trl)
      at Quest.Toad.DatabaseBrowser.ColumnListController.ColumnData_Processing(Object state)
      at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(Object state)
      at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
      at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
      at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
      at System.Threading.ThreadPoolWorkQueue.Dispatch()
      at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()
 InnerException: